Q.
‘XX’is a part of respiratory system that contains C-shaped rings of hyaline cartilage.‘XX’is lined with ciliated, pseudostratified columnar epithelium.Identify‘XX’.
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Breathing and Exchange of Gases
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Solution:
Trachea, Those rings keep the trachea open for all the time. They are C-shaped in order to allow the open end to face the esophagus.